Body
If you need to add a public folder calendar to your Outlook client you can do so by following the below instructions to add them in New Outlook and Classic Outlook.
Outlook for Windows
1. Open Outlook
2. In the lower-left corner of Outlook, click “Folders” to switch to Folder view. You should now see a section called “Public Folders”.
3. Expand “Public Folders – [Your Email Address]”.
4. Expand “All Public Folders” to navigate to the place where the Public Folder calendar is.

5. Right-click the folder and select "Add to Favorites".
6. Navigate down to the Favorites section and double-click the calendar to add it to your calendar view.
7. Your calendar will now appear in the "Other Folders" section of your calendar.

8. If you receive an error when opening the calendar, a rebuild of your Outlook profile will be needed. Please follow these instructions to complete this.
Outlook for Mac
1. Open Outlook
2. On the Tools menu, click Public Folders.
3. In the left pane, under Public Folders, click the Exchange account that you want.
4. Click the folder that you want to subscribe to, and then click Subscribe Add button.
5. To view the contents of the folder, click the folder in the navigation pane. Messages or contacts in the folder appear in the item list. Or, if the folder is a calendar folder, events appear on the calendar.
6. If you receive an error when opening the calendar, a rebuild of your Outlook profile will be needed. Please follow these instructions to complete this.
For the most updated information and instructions, please refer to the Microsoft knowledge base articles below: